baber/WOPTO huggingface dataset:
Patent KR-20080004857-A (KR)
Title: Condensor with receiver dryer
Inventor: OH KWANG HEON
IPC: F25B43/00
Filed: 2006-07-07
Abstract: A condenser with a receiver dryer is provided to enhance the performance of a freezing cycle by reducing the work of a compressor when a refrigerant is compressed by the compressor. A condenser includes a plurality of tubes(10), first and second tanks(20,30), an inlet(21), an outlet(22), a receiver dryer(50), and a first pressure reducing baffle(51). The tubes are horizontally stacked. The first and second tanks are partitioned into chambers by a plurality of baffles(23,24,25) alternately arranged inside the first and second tanks so as to flow a refrigerant in zigzags through a passage. The inlet and the outlet are formed at the first or second tank. The receiver dryer is connected to the first or second tank, and discharges the refrigerant introduced from the first or second tank after removing the foreign substances of the refrigerant. The first pressure reducing baffle is installed on the inner wall of the inner lower part of an inlet(52) of the receiver dryer, and reduces the pressure of the introduced refrigerant.
Patent KR-20080008131-A (KR)
Title: A audio and video system with network for a basis
Inventor: KIM SAN HONG
IPC: H04N5/44
Filed: 2006-07-19
Abstract: A network-based A/V(Audio/Video) system is provided to connect various AV terminals previously to an AV multiplexer without connecting AV home appliances in the rear of an AV display device, thereby easily selecting and outputting A/V sources by using an AV selection switch. An AV(Audio/Video) selection switch(600) is connected with an AV multiplexer(100) through a UTP(Universal Personal Telecommunication) cable so as to supply power and signals. At least a part of the AV selection switch is exposed. The AV selection switch includes plural switches for source selection and has an RF(Radio Frequency) module so as to be controlled by an external remote controller(650). During operation by the remote controller or operation of the AV selection switch mounted on the wall, one of plural AV inputs installed in the AV multiplexer is selected and outputted to an AV output terminal(130) of an AV display device(200).
Patent KR-20080008493-A (KR)
Title: The transmission line electromagnetic field reduction demonstration test system using the perpendicularity loop
Inventor: CHO YUEN GYU
IPC: G01R31/08
Filed: 2006-07-20
Abstract: A transmission line electromagnetic field reduction demonstration system using a perpendicularity loop is provided to reduce the electromagnetic field around a power transmission line rapidly by controlling the intensity of a current induced on the power transmission line. According to a transmission line electromagnetic field reduction demonstration system using a perpendicularity loop, a perpendicularity loop device(10) reduces electromagnetic field around a power transmission line by enabling magnetic flux due to an induced current by a voltage on the perpendicularity loop to cancel magnetic flux of a phase conductor. A capacitance device(20) changes electric parameters through the perpendicularity loop. A current source supply device(30) is connected to a power transmission electric line and an ingress cable, and supplies a current to the power transmission line. A control device(40) controls the current source supply device through a control cable, and transmits current source data in real time. A manager computer(60) receives the current source data, and compares measured data with predicted electromagnetic field reduction data.
Patent KR-20060090646-A (KR)
Inventor: OH JUNG PYO
IPC: H01L21/32
Filed: 2006-07-24
Abstract: 본 발명은 웨이퍼 스테이지의 제조방법에 관한 것으로, 웨이퍼 스테이지의 상면에 포토레지스트 필름과 마스크를 순차적으로 형성시킨 후, 자외선을 조사하여 포토레지스트 필름에 마스크의 패턴이 현상되도록 한 다음, 그에 샌드 블라스트 가공함으로써 포토레지스트 필름이 형성된 부분은 양각의 형태로 남고 나머지부분은 깎여지도록 가공하여 웨이퍼 스테이지 상면에 돗트와 진공통로를 신속하고 정확하게 가공할 수 있도록 한 특징이 있다. 
     본 발명은 크게 네 공정으로 구성되는바, 원판형태의 웨이퍼 스테이지(10)의 상면에 포토레지스트 필름(20)을 형성시킨 후 저온으로 가열하여 일체로 결합시키는 준비공정(S1)과, 포토레지스트 필름(20)이 형성된 웨이퍼 스테이지(10)의 상면에 마스크(30)를 형성시키고, 그에 자외선(31)을 조사하여 포토레지스트 필름(20)이 마스크 형상대로 현상되도록 한 후 고온으로 가열하는 자외선 조사공정(S2)과, 상기 마스크(30)를 제거하고 포토레지스트 필름(20)이 형성된 웨이퍼 스테이지(10)의 상면을 샌드 블라스트(40)를 이용하여 가공하는 샌드 블라스트 공정(S3)과, 상면에 형성된 포토레지스트 필름(20)을 제거하고 표면을 평활하게 가공하는 표면 가공 및 정리공정(S4)으로 구성되어, 웨이퍼 스테이지를 신속하게 제작할 수 있는 대략적인 구성을 갖는다. 
     상기와 같은 본 발명은, 웨이퍼 스테이지의 상면에 포토레지스트 필름과 마스크를 순차적으로 형성시킨 후, 자외선을 조사하여 포토레지스트 필름에 마스크의 패턴이 현상되도록 다음, 그에 샌드 블라스트 가공함으로써 포토레지스트 필름이 형성된 부분은 남고 나머지부분은 깎여지도록 가공하여, 웨이퍼 스테이지 상면에 양각의 형태로 돌출된 돗트와 음각의 형태로 깎여진 진공통로가 신속하고 정확하게 가공되는 효과가 있다. 
     웨이퍼 스테이지 상면에 형성된 돌출된 돗트가 동시에 가공됨으로 인해 웨이퍼 스테이지의 생산속도가 크게 향상되며, 제작 시 불량품이 발생될 위험이 현저히 줄어들게 되고, 마스크에 형성된 패턴대로 돗트가 형성됨으로써 각각의 돗트 위치가 정확하여 위치결정도가 높은 고품질의 웨이퍼 스테이지를 얻을 수 있는 효과가 있다. 
       
     웨이퍼 스테이지, 반도체, 포토레지스트 필름, 마스크, 샌드 블라스트
Patent KR-20080009787-A (KR)
Title: Substrate support appartus having substrate alignment sensor
Inventor: NOH HWAN IK
IPC: H01L21/683
Filed: 2006-07-25
Abstract: A substrate support apparatus having a substrate alignment sensor is provided to minimize the damage of a substrate due to misalignment by detecting the misaligned substrate with sensors formed on the front and rear upper ends of a substrate guide. A substrate support apparatus having a substrate alignment sensor includes a substrate guide(100), and a sensor unit. The substrate guide aligns and supports a plurality of substrates(W) in a standing up state. The sensor unit includes a first sensor which irradiates laser to be adjacent to the edge of the substrates aligned and supported on the substrate guide and a second sensor which detects the laser irradiated by the first sensor, and detects the misalignment of the substrate. The first sensor is arranged at the front upper end of the substrate guide. The second sensor is arranged on the same level with the first sensor at the rear upper end of the substrate guide.
Patent KR-20070037982-A (KR)
Inventor: PARK JONG HWA
IPC: A47C27/00
Filed: 2006-08-16
Abstract: 본 발명은 솜이 채워져 있는 방석속(20)의 표면을 종횡방향으로 누빔봉제처리하여 방석을 사용 경우 방석속(20) 내부에 채워져 있는 솜이 한쪽으로 밀려가거나 겹쳐지지 않으며 세탁을 하는 경우 방석속(20) 내부에서 솜이 뭉치거나 한쪽으로 밀리는 문제점이 발생하지 않아 언제든지 세탁을 하여 위생적으로 장기간 사용할 수 있는 방석속 세탁용 위생방석에 관한 것이다. 
       
     	위생방석, 방석속, 누빔봉제처리
Patent KR-20080015609-A (KR)
Title: Method for surveying efficiency of keyword advertising and system for executing the method
Inventor: KIM HYO JEONG
IPC: G06F17/30
Filed: 2006-08-16
Abstract: A method and a system for measuring efficiency of keyword AD(ADvertisement) are provided to output an optimization model for a keyword AD area based on keyword AD efficiency, which is calculated by measuring a gaze pattern of a user in a searched webpage through an eye tracking system and measuring an event occurring in the webpage. A gaze pattern result generator(1710) generates a gaze pattern result by measuring the gaze pattern of the user in the webpage including the keyword AD. An event occurrence result generator(1720) generates an event occurrence result by measuring the event occurring in the webpage while the gaze pattern is measured. An efficiency measurer(1730) measures the keyword AD efficiency by analyzing the gaze pattern result and the event occurrence result. The efficiency measurer includes an attention calculator(1731) calculating attention of each area of the webpage, a type or a component of the keyword AD based on an AOI(Area Of Interest) name included in the gaze pattern result, a click calculator(1732) calculating the first click time and a click count of each area or type based on the AOI name, and a measurer(1730) measuring the keyword AD efficiency based on the attention, the first click time, and the click count.
Patent KR-20080016014-A (KR)
Title: Driving circuit for liquid crystal display device
Inventor: LEE DONG YEOL
IPC: G09G3/20
Filed: 2006-08-17
Abstract: A driving circuit for an LCD device is provided to prevent a gate signal from being distorted by dividing gate lines into two groups and using the respective groups of gate lines to drive front and rear TFTs(Thin Film Transistors) on the same row, respectively. A driving circuit for an LCD(Liquid Crystal Display) device includes an LCD panel(55), a gate driver(53), and a data driver(54). Gate lines on the LCD panel are divided into two groups. One of the groups of the gate lines is used to turn on/off front TFTs on a corresponding row, while the other group is used to turn on/off the rear TFTs. The gate driver supplies a gate-on signal to respective gate lines on the LCD panel. The data driver supplies a data signal to the respective data lines on the LCD panel.
Patent KR-20080017883-A (KR)
Title: Flexible printed circuit board
Inventor: KIM DONG HYUN
IPC: H05K1/02
Filed: 2006-08-23
Abstract: A flexible printed circuit board is provided to assure tension margin by the thickness of a base film, by printing a polyimide type ink on a bottom plane. A flexible printed circuit board(60) includes a base film(30). Top and bottom base adhesive layers(32,34) are coated on both planes of the base film. Top and bottom copper foil layers(36,38) are attached to the top and bottom base adhesive layer. Top and bottom cladding layer are formed on the top and bottom copper foil layer. A cover lay layer(52) is attached to an adhesive on the non-open region of the top cladding layer. A polyimide layer(54) is formed on the non-open region of the bottom cladding layer.
Patent KR-20070036662-A (KR)
Inventor: HAN KYU BUM
IPC: G02B26/10
Filed: 2006-09-07
Abstract: 스캐닝 디바이스와 광변조기를 이용한 모바일 디스플레이 장치에 있어서, 스캐닝 디바이스의 일면으로부터 반사된 광을 감지하여 스캐닝 디바이스의 위치를 특정하기 위한 스캐닝 디바이스 기준 신호를 생성하는 감지 장치, 감지 장치로부터 수신한 스캐닝 디바이스 기준 신호를 영상 동기 신호와 동기화시킴으로써 광변조기로부터 출사된 광이 스캐닝 디바이스의 미리 설정된 영역에서 반사될 수 있도록 스캐닝 디바이스 제어 신호와 광변조기 제어 신호를 생성하는 구동 신호 제어부를 포함하는 광변조기를 이용한 디스플레이 장치가 제시된다. 본 발명에 따른 광변조기를 이용한 디스플레이 방법 및 그 장치는 영상 신호와 스캐닝 디바이스의 회전 및 위치를 동기화시킬 수 있는 효과가 있다. 
       
     폴리곤 미러, 광변조기, 동기, 모바일, 디스플레이.
Patent KR-20080023818-A (KR)
Title: Game service system and method
Inventor: SOHN SEONG HEE
IPC: G06Q30/02
Filed: 2006-09-12
Abstract: A system and a method for providing a game service are provided to enable a gamer to buy goods easily without terminating and restarting an online game by displaying a guide message to a gamer terminal when game money of the gamer is smaller than a predetermined value, and helping the gamer with a call of an agent when a call request signal is received from the gamer terminal. A CTI(Computer-Telephony Integration) device(600) sends a call to a user phone(350). An agent terminal(700) requests the call to the CTI device. A game server(500) displays a guide message to a gamer terminal when game money of a gamer is smaller than a predetermined value, and transmits a call request signal and customer information to the agent terminal when a call request signal is received from the gamer terminal while advancing the game by providing game data to the user terminal. The agent terminal requests the call by extracting a phone number of the gamer from the customer information when the call request signal is receiver. The CTI device includes a call connector(620), a call controller(610) and a call history database(630). The call connector sends the call to the gamer and switching the call to the agent terminal by determining call reception. A customer information database(400) stores and provides the customer information by a request of the game server and the CTI device.
Patent KR-20060105714-A (KR)
Inventor: LIM CHEOL JOON
IPC: B26F1/40
Filed: 2006-09-15
Abstract: 본 발명 천공기는 달력, 서적, 종이 또는 서류 등을 스프링에 의해 철할 수 있도록 소정부위에 구멍을 천공하는 천공부와, 상기 천공부에 의해 소정의 부위에 천공된 달력, 서적, 종이, 서류 등에 스프링을 끼워서 철을 할 수 있도록 바인더부가 함께 구비되어 천공기와 바인더기를 겸용으로 사용할 수 있는 것이다. 
     또한, 상기 천공기의 천공부는 천공 핀의 모양이나 크기를 달리하여 사용할 경우 천공 핀을 분해하지않고 두 종류의 천공 핀을 양쪽으로 체결한 상태에서 슬라이드방식으로 해당 천공 핀을 선택하여 사용함으로써, 천공작업중 작업능률의 향상을 가져오는 것은 물론 바인더부는 스프링의 두께 및 크기에 따라 압착하는 힘을 조절할 수 있는 것을 특징으로 한다. 
       
     천공기, 천공부, 바인더부, 스프링, 천공 핀
Patent KR-20070033935-A (KR)
Title: 자기 기록 매체의 교환 커플링 조정
IPC: G11B5/66
Filed: 2006-09-22
Abstract: 기판, 제 1 자기층 및 제 2 자기층을 순서대로 갖는 자기 기록 매체가 개시되며, 상기 제 1 자기층의 교환 커플링은 상기 제 2 자기층의 교환 커플링보다 더 낮고, 상기 제 1 및 제 2 자기층은 상기 제 1 자기층의 자기 그레인들이 상기 제 2 자기층을 통하는 경로에 의해 교환 커플링되도록 막 적층부에 있다.  기판을 획득하는 단계, 제 1 스퍼터링 가스 압력에서 제 1 자기층을 증착하는 단계, 및 제 2 스퍼터링 가스 압력에서 제 2 자기층을 증착하는 단계를 순서대로 포함하는 자기 기록 매체의 제조 방법이 개시되며, 상기 제 1 스퍼터링 가스 압력은 상기 제 2 스퍼터링 가스 압력보다 더 높고, 상기 제 1 자기층의 교환 커플링은 상기 제 2 자기층의 교환 커플링 보다 더 낮다.
Patent KR-20080029290-A (KR)
Title: Hydric catalyst combustion burner for using lng or hydrogen
Inventor: HEO SEONG GEUN
IPC: F23D14/28
Filed: 2006-09-28
Abstract: A hydrogen catalyst combustion burner for using LNG(Liquefied Natural Gas) is provided to enable catalyst combustion at a low temperature to enhance the stability of a hydrogen burner, and to ignite hydrogen fuel or the LNG using combustion heat of the hydrogen burner. A hydrogen catalyst combustion burner includes a burner body(100) having an inner space, an air passage, a hydrogen spray unit(200), a catalyst member(300), and a first fuel injection unit(B1). The air passage is formed in the burner body to spray hydrogen fuel into the burner body. The catalyst member performs a chemical reaction by using hydrogen fuel spread from the hydrogen spread unit and oxygen of air supplied through the air passage. The first fuel injection unit is mounted on the burner body, and spreads fuel into the burner body. The fuel supplied to the first fuel injection unit includes LNG or hydrogen.
Patent KR-20070038412-A (KR)
Inventor: INOUE TOMOKI
IPC: H03H7/075
Filed: 2006-09-29
Abstract: 본 발명은, EMI 필터의 삽입손실을 작게하면서 ESD 내량을 크게 한다. 
     EMI 필터(20)는 입력단자(Vin), 출력단자(Vout), 저항(R1) 및, 다이오드(D1,D2)를 포함한다.   저항(R1)은 폴리실리콘 저항(Rp)과 링 저항(R11,R12)으로 이루어진다.   폴리실리콘 저항(Rp)은 입력 및 출력단자(Vin,Vout) 사이에 연결된다.   링 저항(R11,R12)은 각각 소정 거리에서 폴리실리콘 저항의 일단 및 타단측 상에 제공된다.   더욱이, 다이오드(D1)는 각각 입력단자(Vin)와 기준전위(Vss)에 연결된 캐소드 및 애노드 전극을 갖는다.   마찬가지로, 다이오드(D2)는 각각 출력단자(Vout)와 기준전위(Vss)에 연결된 캐소드 및 애노드 전극을 갖는다.   링 저항(R11,R12)은 폴리실리콘 저항(Rp)에 전자계적으로 결합되도록 구형 형상이다.   고주파 신호가 입력단자(Vin)에 인가될 때, 폴리실리콘 저항(Rp)을 통해 흐르는 저항은 자계를 발생시켜 링 저항(R11,R12)이 전자계적으로 전류를 유도하게 된다.
Patent KR-20080030807-A (KR)
Title: Radio frequency identification tag and manufacturing method thereof
Inventor: RYU JAE HYUNG
IPC: G06K19/07
Filed: 2006-10-02
Abstract: An RFID(Radio Frequency IDentification) tag and a manufacturing method thereof are provided to attach an RFID circuit module firmly to a conductive pattern, and keep an attachment state stably while keeping a small thickness. A low strength adhesive layer(20) is formed on a release sheet(10). A conductive pattern(30) is formed on the low strength adhesive layer. An RFID circuit module(40) includes an RFID chip(41), and a conductive strap(42) connecting one end to the RFID chip and connecting another end facially to the conductive pattern, and a base film(43) for mounting the RFID chip and the conductive strap at the same time. A high strength adhesive layer(50) covers the conductive pattern and the RFID circuit module. An insulation layer(60) is formed on the high strength adhesive layer. A contact face between the conductive strap and the conductive pattern is fully welded by ultrasonic welding. A middle adhesive layer is placed between the conductive strap and the conductive pattern.
Patent KR-20080031091-A (KR)
Title: Display apparatus and method of fabricating the same
Inventor: LEE JIN SUK
IPC: G02F1/1345
Filed: 2006-10-03
Abstract: A display device and a method of manufacturing the display device are provided to form an opening at a data pad and harden a conductive adhesive member by using light provided through the opening to reduce a difference between the temperature of an array substrate and the temperature of a data driver, thereby preventing the array substrate from being bent and improving productivity. A display device includes a display panel(LP1), a driving circuit(400) and a conductive adhesive member(500). The display panel includes at least one signal line for transmitting an image signal and a signal pad extended from the end of the signal line to receive the image signal. The signal pad has at least one opening. The display panel displays an image corresponding to the image signal inputted through the signal line and the signal pad. The driving circuit is mounted on the display panel and outputs the image signal to the signal pad. The conductive adhesive member is interposed between the driving circuit and the signal pad, attaches the driving circuit to the display panel and electrically connects the signal pad to the driving circuit.
Patent KR-20080037806-A (KR)
Title: Multiplierless interpolation technique for polar modulator
Inventor: DMITRYSTARODUBTSEV
IPC: H04B7/26
Filed: 2006-10-27
Abstract: A multiplier-less interpolation technique for a polar modulator is provided to reduce the power consumption of an interpolator by enabling the amplitude delay pipeline and phase delay pipeline of the interpolator to be operated at a low frequency. An interpolator(30) comprises an amplitude interpolator and a phase interpolator. The amplitude interpolator receives an amplitude signal having an input sampling frequency, interpolates it, executes over sampling for the interpolated amplitude signal as much as an interpolation ratio, and outputs the over-sampled amplitude signal. The phase interpolator receives a phase signal having the input sampling frequency, performs phase unwrapping for it, interpolates the phase-unwrapped phase signal, differentiates the interpolated phase signal, executes over sampling for the differentiated phase signal, and outputs the over-sampled phase signal.
Patent KR-20080039690-A (KR)
Title: Method for a subscription video recording of private video recorder
Inventor: RYU CHANG WAN
IPC: H04N5/761
Filed: 2006-11-01
Abstract: A reservation recording method of a PVR(Personal Video Recorder) is provided to secure the remaining volume of an HDD(Hard Disk Drive) of the PVR, to divide the secured remaining volume of the HDD by a record quality grade, to calculate the number of the record possible programs by each grade and to notify the calculated number of the record possible programs to a user. When setting a reservation recording, a process for discriminating the remaining volume at the hard disk of a PVR is performed(S20). A process for calculating the number of programs capable of storing is performed by considering the discriminated remaining volume of the hard disk of the PVR(S30). The calculated number of programs is displayed on an OSD(On Screen Display)(S40). Thereafter, when the reservation recording set is finished, the number of finished programs is deduced from the number of programs capable of storing and thereafter the resulting number of programs is displayed on the OSD(S60). The number of programs is the number of program with the amount of 1 hour according to the recording quality grades.
Patent KR-20080040237-A (KR)
Title: Device of driving lamp and display apparatus having the same
Inventor: KANG MOON SHIK
IPC: H05B37/02
Filed: 2006-11-02
Abstract: A lamp driving device and a display device having the same are provided to omit a transformer from circuit configuration within an inverter for converting DC power into AC power, thereby reducing volume, weight and manufacturing costs. A lamp driving module comprises an AC-DC(Alternating Current-Direct Current) rectifier(230), an inverter(250) and a third voltage converter(270). The inverter comprises first and second voltage converters(255,257). The first voltage converter has a first output terminal(A), converts DC power voltage into first pulse voltage(VP1), and periodically outputs the converted first pulse voltage through the first output terminal. The second voltage converter has a second output terminal(B), converts the DC power voltage into second pulse voltage(VP2) having polarity opposite to the first pulse voltage and having a phase different from the first pulse voltage, and periodically outputs the converted second pulse voltage through the second output terminal. The third voltage converter is electrically connected with the first and second output terminals. Based on the first and second pulse voltage provided through the first and second output terminals, the third voltage converter generates AC voltage having a swing width bigger than a voltage difference between the first and second pulse voltage and provides the generated AC voltage to a lamp.
Patent KR-20080040521-A (KR)
Title: Beverage of ginseng fruit and manufacturing method thereof
Inventor: SEONG IN HWAN
IPC: A23L19/00
Filed: 2006-11-03
Abstract: A method of manufacturing a ginseng fruit beverage from ginseng fruit which is discarded as waste is provided to obtain the beverage containing an increased amount of ginsenoside and other components. A ginseng fruit beverage contains a ginseng fruit extract and assistant material selected from sugar, organic acid, amino acid, vitamin, edible pigments, aloe, mugwort extract, fruit juice and vegetable juice. The ginseng fruit extract is obtained by the steps of: steaming, drying and roasting; subjecting to any one treatment selected from ultrasonic treatment, low frequency treatment, electric field treatment and magnetic field treatment and extracting with hot water or aqueous ethanol solutions.
Patent KR-20080045786-A (KR)
Title: Multifunction head for golf putter
Inventor: JO SU KYUNG
IPC: A63B53/04
Filed: 2006-11-21
Abstract: A multi-functional head for a golf putter is provided to enable a user to choose one side among four sides according to the condition of the green when hitting a golf ball. A multi-functional head for a golf putter includes a first hitting surface(320), a second hitting surface(330), a third hitting surface(340), and a fourth hitting surface(350). The first hitting surface is formed to be perpendicular to the upper surface having a fixing hole(311) formed thereon. Plural knurlings are formed on the first hitting surface. The third hitting surface is formed to be perpendicular to the upper surface on which a shaft is fixed, and forms an inclination whose upper part is inclined forwardly. The fourth hitting surface forms an inclination whose upper part is inclined backwardly.
Patent KR-20080045939-A (KR)
Title: A washing machine
Inventor: YOUN SEOG DO
IPC: D06F15/00
Filed: 2006-11-21
Abstract: A washer wherein a heating unit is embedded to dry laundry is provided to prevent damage to laundry and to reduce washing time. A washer comprises a lower container(20), a rotating unit(40), an upper container(10), and a pressing plate(51). The lower container has a washing tub inside and in which laundry is injected. The rotating unit is installed at the lower container, and rotates the washing tub. The upper container is assembled to one part of an outer periphery surface of the lower container, and being opened. The pressing plate is placed in the upper container, and presses laundry by vertically moving inside of the lower container. The rotating unit has a tooth, a spur gear and a motor(43). The tooth is formed on an upper outer periphery surface of the washing tub. The spur gear is engaged with the tooth of the washing tub. The motor rotates the spur gear. A heating unit(70) is installed at one part of the lower container, and heats a lower surface of the washing tub.